BBpress & WordPress login all over the place?

When someone registers with bbpress they are redirected to the home page and not back the the forum. Why? The user then has to go through all the pages again to find where they were in the first place. Not very user friendly.

Even just now, I registered on this form, went through all the hoops etc..and where did I end up after signing up? The wordpress homepage?

What about a very simple process of you sign up and you are re-diredted to where you were.